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  <title>Executes a prepared Query</title>

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</div><hr /><div id="mysqli-stmt.execute" class="refentry">
 <div class="refnamediv">
  <h1 class="refname">mysqli_stmt::execute</h1>
  <h1 class="refname">mysqli_stmt_execute</h1>
  <p class="verinfo">(PHP 5)</p><p class="refpurpose"><span class="refname">mysqli_stmt::execute</span> -- <span class="refname">mysqli_stmt_execute</span> &mdash; <span class="dc-title">Executes a prepared Query</span></p>

 </div>

 <div class="refsect1 description" id="refsect1-mysqli-stmt.execute-description">
  <h3 class="title">说明</h3>
  <p class="para">面向对象风格</p>
  <div class="methodsynopsis dc-description">
   <span class="type">bool</span> <span class="methodname"><strong>mysqli_stmt::execute</strong></span>
    ( <span class="methodparam">void</span>
   )</div>

  <p class="para rdfs-comment">过程化风格</p>
  <div class="methodsynopsis dc-description">
   <span class="type">bool</span> <span class="methodname"><strong>mysqli_stmt_execute</strong></span>
    ( <span class="methodparam"><span class="type"><a href="class.mysqli-stmt.html" class="type mysqli_stmt">mysqli_stmt</a></span> <code class="parameter">$stmt</code></span>
   )</div>

  <p class="para rdfs-comment">
   Executes a query that has been previously prepared using the
   <span class="function"><a href="mysqli.prepare.html" class="function">mysqli_prepare()</a></span> function. When executed any
   parameter markers which exist will automatically be replaced with the
   appropriate data.
  </p>
  <p class="para">
   If the statement is <em>UPDATE</em>, <em>DELETE</em>,
   or <em>INSERT</em>, the total number of affected rows can be
   determined by using the <span class="function"><a href="mysqli-stmt.affected-rows.html" class="function">mysqli_stmt_affected_rows()</a></span>
   function. Likewise, if the query yields a result set the 
   <span class="function"><a href="mysqli-stmt.fetch.html" class="function">mysqli_stmt_fetch()</a></span> function is used.
  </p>
  <blockquote class="note"><p><strong class="note">Note</strong>: 
   <p class="para">
    When using <span class="function"><strong>mysqli_stmt_execute()</strong></span>, the 
    <span class="function"><a href="mysqli-stmt.fetch.html" class="function">mysqli_stmt_fetch()</a></span> function must be used to fetch the
    data prior to performing any additional queries.
   </p>
  </p></blockquote>
 </div>


 <div class="refsect1 parameters" id="refsect1-mysqli-stmt.execute-parameters">
  <h3 class="title">参数</h3>
  <p class="para">
   <dl>

    <dt>
<em><code class="parameter">
stmt</code></em></dt>
<dd>
<p class="para">仅以过程化样式：由
<span class="function"><a href="mysqli.stmt-init.html" class="function">mysqli_stmt_init()</a></span> 返回的 statement 标识。</p></dd>

   </dl>

  </p>
 </div>


 <div class="refsect1 returnvalues" id="refsect1-mysqli-stmt.execute-returnvalues">
  <h3 class="title">返回值</h3>
  <p class="para">
   成功时返回 <strong><code>TRUE</code></strong>， 或者在失败时返回 <strong><code>FALSE</code></strong>。
  </p>
 </div>


 <div class="refsect1 examples" id="refsect1-mysqli-stmt.execute-examples">
  <h3 class="title">范例</h3>
  <div class="example" id="example-1674">
   <p><strong>Example #1 面向对象风格</strong></p>
   <div class="example-contents">
<div class="phpcode"><code><span style="color: #000000">
<span style="color: #0000BB">&lt;?php<br />$mysqli&nbsp;</span><span style="color: #007700">=&nbsp;new&nbsp;</span><span style="color: #0000BB">mysqli</span><span style="color: #007700">(</span><span style="color: #DD0000">"localhost"</span><span style="color: #007700">,&nbsp;</span><span style="color: #DD0000">"my_user"</span><span style="color: #007700">,&nbsp;</span><span style="color: #DD0000">"my_password"</span><span style="color: #007700">,&nbsp;</span><span style="color: #DD0000">"world"</span><span style="color: #007700">);<br /><br /></span><span style="color: #FF8000">/*&nbsp;check&nbsp;connection&nbsp;*/<br /></span><span style="color: #007700">if&nbsp;(</span><span style="color: #0000BB">mysqli_connect_errno</span><span style="color: #007700">())&nbsp;{<br />&nbsp;&nbsp;&nbsp;&nbsp;</span><span style="color: #0000BB">printf</span><span style="color: #007700">(</span><span style="color: #DD0000">"Connect&nbsp;failed:&nbsp;%s\n"</span><span style="color: #007700">,&nbsp;</span><span style="color: #0000BB">mysqli_connect_error</span><span style="color: #007700">());<br />&nbsp;&nbsp;&nbsp;&nbsp;exit();<br />}<br /><br /></span><span style="color: #0000BB">$mysqli</span><span style="color: #007700">-&gt;</span><span style="color: #0000BB">query</span><span style="color: #007700">(</span><span style="color: #DD0000">"CREATE&nbsp;TABLE&nbsp;myCity&nbsp;LIKE&nbsp;City"</span><span style="color: #007700">);<br /><br /></span><span style="color: #FF8000">/*&nbsp;Prepare&nbsp;an&nbsp;insert&nbsp;statement&nbsp;*/<br /></span><span style="color: #0000BB">$query&nbsp;</span><span style="color: #007700">=&nbsp;</span><span style="color: #DD0000">"INSERT&nbsp;INTO&nbsp;myCity&nbsp;(Name,&nbsp;CountryCode,&nbsp;District)&nbsp;VALUES&nbsp;(?,?,?)"</span><span style="color: #007700">;<br /></span><span style="color: #0000BB">$stmt&nbsp;</span><span style="color: #007700">=&nbsp;</span><span style="color: #0000BB">$mysqli</span><span style="color: #007700">-&gt;</span><span style="color: #0000BB">prepare</span><span style="color: #007700">(</span><span style="color: #0000BB">$query</span><span style="color: #007700">);<br /><br /></span><span style="color: #0000BB">$stmt</span><span style="color: #007700">-&gt;</span><span style="color: #0000BB">bind_param</span><span style="color: #007700">(</span><span style="color: #DD0000">"sss"</span><span style="color: #007700">,&nbsp;</span><span style="color: #0000BB">$val1</span><span style="color: #007700">,&nbsp;</span><span style="color: #0000BB">$val2</span><span style="color: #007700">,&nbsp;</span><span style="color: #0000BB">$val3</span><span style="color: #007700">);<br /><br /></span><span style="color: #0000BB">$val1&nbsp;</span><span style="color: #007700">=&nbsp;</span><span style="color: #DD0000">'Stuttgart'</span><span style="color: #007700">;<br /></span><span style="color: #0000BB">$val2&nbsp;</span><span style="color: #007700">=&nbsp;</span><span style="color: #DD0000">'DEU'</span><span style="color: #007700">;<br /></span><span style="color: #0000BB">$val3&nbsp;</span><span style="color: #007700">=&nbsp;</span><span style="color: #DD0000">'Baden-Wuerttemberg'</span><span style="color: #007700">;<br /><br /></span><span style="color: #FF8000">/*&nbsp;Execute&nbsp;the&nbsp;statement&nbsp;*/<br /></span><span style="color: #0000BB">$stmt</span><span style="color: #007700">-&gt;</span><span style="color: #0000BB">execute</span><span style="color: #007700">();<br /><br /></span><span style="color: #0000BB">$val1&nbsp;</span><span style="color: #007700">=&nbsp;</span><span style="color: #DD0000">'Bordeaux'</span><span style="color: #007700">;<br /></span><span style="color: #0000BB">$val2&nbsp;</span><span style="color: #007700">=&nbsp;</span><span style="color: #DD0000">'FRA'</span><span style="color: #007700">;<br /></span><span style="color: #0000BB">$val3&nbsp;</span><span style="color: #007700">=&nbsp;</span><span style="color: #DD0000">'Aquitaine'</span><span style="color: #007700">;<br /><br /></span><span style="color: #FF8000">/*&nbsp;Execute&nbsp;the&nbsp;statement&nbsp;*/<br /></span><span style="color: #0000BB">$stmt</span><span style="color: #007700">-&gt;</span><span style="color: #0000BB">execute</span><span style="color: #007700">();<br /><br /></span><span style="color: #FF8000">/*&nbsp;close&nbsp;statement&nbsp;*/<br /></span><span style="color: #0000BB">$stmt</span><span style="color: #007700">-&gt;</span><span style="color: #0000BB">close</span><span style="color: #007700">();<br /><br /></span><span style="color: #FF8000">/*&nbsp;retrieve&nbsp;all&nbsp;rows&nbsp;from&nbsp;myCity&nbsp;*/<br /></span><span style="color: #0000BB">$query&nbsp;</span><span style="color: #007700">=&nbsp;</span><span style="color: #DD0000">"SELECT&nbsp;Name,&nbsp;CountryCode,&nbsp;District&nbsp;FROM&nbsp;myCity"</span><span style="color: #007700">;<br />if&nbsp;(</span><span style="color: #0000BB">$result&nbsp;</span><span style="color: #007700">=&nbsp;</span><span style="color: #0000BB">$mysqli</span><span style="color: #007700">-&gt;</span><span style="color: #0000BB">query</span><span style="color: #007700">(</span><span style="color: #0000BB">$query</span><span style="color: #007700">))&nbsp;{<br />&nbsp;&nbsp;&nbsp;&nbsp;while&nbsp;(</span><span style="color: #0000BB">$row&nbsp;</span><span style="color: #007700">=&nbsp;</span><span style="color: #0000BB">$result</span><span style="color: #007700">-&gt;</span><span style="color: #0000BB">fetch_row</span><span style="color: #007700">())&nbsp;{<br />&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</span><span style="color: #0000BB">printf</span><span style="color: #007700">(</span><span style="color: #DD0000">"%s&nbsp;(%s,%s)\n"</span><span style="color: #007700">,&nbsp;</span><span style="color: #0000BB">$row</span><span style="color: #007700">[</span><span style="color: #0000BB">0</span><span style="color: #007700">],&nbsp;</span><span style="color: #0000BB">$row</span><span style="color: #007700">[</span><span style="color: #0000BB">1</span><span style="color: #007700">],&nbsp;</span><span style="color: #0000BB">$row</span><span style="color: #007700">[</span><span style="color: #0000BB">2</span><span style="color: #007700">]);<br />&nbsp;&nbsp;&nbsp;&nbsp;}<br />&nbsp;&nbsp;&nbsp;&nbsp;</span><span style="color: #FF8000">/*&nbsp;free&nbsp;result&nbsp;set&nbsp;*/<br />&nbsp;&nbsp;&nbsp;&nbsp;</span><span style="color: #0000BB">$result</span><span style="color: #007700">-&gt;</span><span style="color: #0000BB">close</span><span style="color: #007700">();<br />}<br /><br /></span><span style="color: #FF8000">/*&nbsp;remove&nbsp;table&nbsp;*/<br /></span><span style="color: #0000BB">$mysqli</span><span style="color: #007700">-&gt;</span><span style="color: #0000BB">query</span><span style="color: #007700">(</span><span style="color: #DD0000">"DROP&nbsp;TABLE&nbsp;myCity"</span><span style="color: #007700">);<br /><br /></span><span style="color: #FF8000">/*&nbsp;close&nbsp;connection&nbsp;*/<br /></span><span style="color: #0000BB">$mysqli</span><span style="color: #007700">-&gt;</span><span style="color: #0000BB">close</span><span style="color: #007700">();<br /></span><span style="color: #0000BB">?&gt;</span>
</span>
</code></div>
   </div>

  </div>
  <div class="example" id="example-1675">
   <p><strong>Example #2 过程化风格</strong></p>
   <div class="example-contents">
<div class="phpcode"><code><span style="color: #000000">
<span style="color: #0000BB">&lt;?php<br />$link&nbsp;</span><span style="color: #007700">=&nbsp;</span><span style="color: #0000BB">mysqli_connect</span><span style="color: #007700">(</span><span style="color: #DD0000">"localhost"</span><span style="color: #007700">,&nbsp;</span><span style="color: #DD0000">"my_user"</span><span style="color: #007700">,&nbsp;</span><span style="color: #DD0000">"my_password"</span><span style="color: #007700">,&nbsp;</span><span style="color: #DD0000">"world"</span><span style="color: #007700">);<br /><br /></span><span style="color: #FF8000">/*&nbsp;check&nbsp;connection&nbsp;*/<br /></span><span style="color: #007700">if&nbsp;(</span><span style="color: #0000BB">mysqli_connect_errno</span><span style="color: #007700">())&nbsp;{<br />&nbsp;&nbsp;&nbsp;&nbsp;</span><span style="color: #0000BB">printf</span><span style="color: #007700">(</span><span style="color: #DD0000">"Connect&nbsp;failed:&nbsp;%s\n"</span><span style="color: #007700">,&nbsp;</span><span style="color: #0000BB">mysqli_connect_error</span><span style="color: #007700">());<br />&nbsp;&nbsp;&nbsp;&nbsp;exit();<br />}<br /><br /></span><span style="color: #0000BB">mysqli_query</span><span style="color: #007700">(</span><span style="color: #0000BB">$link</span><span style="color: #007700">,&nbsp;</span><span style="color: #DD0000">"CREATE&nbsp;TABLE&nbsp;myCity&nbsp;LIKE&nbsp;City"</span><span style="color: #007700">);<br /><br /></span><span style="color: #FF8000">/*&nbsp;Prepare&nbsp;an&nbsp;insert&nbsp;statement&nbsp;*/<br /></span><span style="color: #0000BB">$query&nbsp;</span><span style="color: #007700">=&nbsp;</span><span style="color: #DD0000">"INSERT&nbsp;INTO&nbsp;myCity&nbsp;(Name,&nbsp;CountryCode,&nbsp;District)&nbsp;VALUES&nbsp;(?,?,?)"</span><span style="color: #007700">;<br /></span><span style="color: #0000BB">$stmt&nbsp;</span><span style="color: #007700">=&nbsp;</span><span style="color: #0000BB">mysqli_prepare</span><span style="color: #007700">(</span><span style="color: #0000BB">$link</span><span style="color: #007700">,&nbsp;</span><span style="color: #0000BB">$query</span><span style="color: #007700">);<br /><br /></span><span style="color: #0000BB">mysqli_stmt_bind_param</span><span style="color: #007700">(</span><span style="color: #0000BB">$stmt</span><span style="color: #007700">,&nbsp;</span><span style="color: #DD0000">"sss"</span><span style="color: #007700">,&nbsp;</span><span style="color: #0000BB">$val1</span><span style="color: #007700">,&nbsp;</span><span style="color: #0000BB">$val2</span><span style="color: #007700">,&nbsp;</span><span style="color: #0000BB">$val3</span><span style="color: #007700">);<br /><br /></span><span style="color: #0000BB">$val1&nbsp;</span><span style="color: #007700">=&nbsp;</span><span style="color: #DD0000">'Stuttgart'</span><span style="color: #007700">;<br /></span><span style="color: #0000BB">$val2&nbsp;</span><span style="color: #007700">=&nbsp;</span><span style="color: #DD0000">'DEU'</span><span style="color: #007700">;<br /></span><span style="color: #0000BB">$val3&nbsp;</span><span style="color: #007700">=&nbsp;</span><span style="color: #DD0000">'Baden-Wuerttemberg'</span><span style="color: #007700">;<br /><br /></span><span style="color: #FF8000">/*&nbsp;Execute&nbsp;the&nbsp;statement&nbsp;*/<br /></span><span style="color: #0000BB">mysqli_stmt_execute</span><span style="color: #007700">(</span><span style="color: #0000BB">$stmt</span><span style="color: #007700">);<br /><br /></span><span style="color: #0000BB">$val1&nbsp;</span><span style="color: #007700">=&nbsp;</span><span style="color: #DD0000">'Bordeaux'</span><span style="color: #007700">;<br /></span><span style="color: #0000BB">$val2&nbsp;</span><span style="color: #007700">=&nbsp;</span><span style="color: #DD0000">'FRA'</span><span style="color: #007700">;<br /></span><span style="color: #0000BB">$val3&nbsp;</span><span style="color: #007700">=&nbsp;</span><span style="color: #DD0000">'Aquitaine'</span><span style="color: #007700">;<br /><br /></span><span style="color: #FF8000">/*&nbsp;Execute&nbsp;the&nbsp;statement&nbsp;*/<br /></span><span style="color: #0000BB">mysqli_stmt_execute</span><span style="color: #007700">(</span><span style="color: #0000BB">$stmt</span><span style="color: #007700">);<br /><br /></span><span style="color: #FF8000">/*&nbsp;close&nbsp;statement&nbsp;*/<br /></span><span style="color: #0000BB">mysqli_stmt_close</span><span style="color: #007700">(</span><span style="color: #0000BB">$stmt</span><span style="color: #007700">);<br /><br /></span><span style="color: #FF8000">/*&nbsp;retrieve&nbsp;all&nbsp;rows&nbsp;from&nbsp;myCity&nbsp;*/<br /></span><span style="color: #0000BB">$query&nbsp;</span><span style="color: #007700">=&nbsp;</span><span style="color: #DD0000">"SELECT&nbsp;Name,&nbsp;CountryCode,&nbsp;District&nbsp;FROM&nbsp;myCity"</span><span style="color: #007700">;<br />if&nbsp;(</span><span style="color: #0000BB">$result&nbsp;</span><span style="color: #007700">=&nbsp;</span><span style="color: #0000BB">mysqli_query</span><span style="color: #007700">(</span><span style="color: #0000BB">$link</span><span style="color: #007700">,&nbsp;</span><span style="color: #0000BB">$query</span><span style="color: #007700">))&nbsp;{<br />&nbsp;&nbsp;&nbsp;&nbsp;while&nbsp;(</span><span style="color: #0000BB">$row&nbsp;</span><span style="color: #007700">=&nbsp;</span><span style="color: #0000BB">mysqli_fetch_row</span><span style="color: #007700">(</span><span style="color: #0000BB">$result</span><span style="color: #007700">))&nbsp;{<br />&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</span><span style="color: #0000BB">printf</span><span style="color: #007700">(</span><span style="color: #DD0000">"%s&nbsp;(%s,%s)\n"</span><span style="color: #007700">,&nbsp;</span><span style="color: #0000BB">$row</span><span style="color: #007700">[</span><span style="color: #0000BB">0</span><span style="color: #007700">],&nbsp;</span><span style="color: #0000BB">$row</span><span style="color: #007700">[</span><span style="color: #0000BB">1</span><span style="color: #007700">],&nbsp;</span><span style="color: #0000BB">$row</span><span style="color: #007700">[</span><span style="color: #0000BB">2</span><span style="color: #007700">]);<br />&nbsp;&nbsp;&nbsp;&nbsp;}<br />&nbsp;&nbsp;&nbsp;&nbsp;</span><span style="color: #FF8000">/*&nbsp;free&nbsp;result&nbsp;set&nbsp;*/<br />&nbsp;&nbsp;&nbsp;&nbsp;</span><span style="color: #0000BB">mysqli_free_result</span><span style="color: #007700">(</span><span style="color: #0000BB">$result</span><span style="color: #007700">);<br />}<br /><br /></span><span style="color: #FF8000">/*&nbsp;remove&nbsp;table&nbsp;*/<br /></span><span style="color: #0000BB">mysqli_query</span><span style="color: #007700">(</span><span style="color: #0000BB">$link</span><span style="color: #007700">,&nbsp;</span><span style="color: #DD0000">"DROP&nbsp;TABLE&nbsp;myCity"</span><span style="color: #007700">);<br /><br /></span><span style="color: #FF8000">/*&nbsp;close&nbsp;connection&nbsp;*/<br /></span><span style="color: #0000BB">mysqli_close</span><span style="color: #007700">(</span><span style="color: #0000BB">$link</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">?&gt;</span>
</span>
</code></div>
     </div>

     <div class="example-contents"><p>以上例程会输出：</p></div>
     <div class="example-contents screen">
<div class="cdata"><pre>
Stuttgart (DEU,Baden-Wuerttemberg)
Bordeaux (FRA,Aquitaine)
</pre></div>
   </div>
  </div>
 </div>


 <div class="refsect1 seealso" id="refsect1-mysqli-stmt.execute-seealso">
  <h3 class="title">参见</h3>
  <p class="para">
   <ul class="simplelist">
    <li class="member"><span class="function"><a href="mysqli.prepare.html" class="function" rel="rdfs-seeAlso">mysqli_prepare()</a> - Prepare an SQL statement for execution</span></li>
    <li class="member"><span class="function"><a href="mysqli-stmt.bind-param.html" class="function" rel="rdfs-seeAlso">mysqli_stmt_bind_param()</a> - Binds variables to a prepared statement as parameters</span></li>
    <li class="member"><span class="function"><a href="mysqli-stmt.get-result.html" class="function" rel="rdfs-seeAlso">mysqli_stmt_get_result()</a> - Gets a result set from a prepared statement</span></li>
   </ul>
  </p>
 </div>


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